Reliable Gas Hot Water All Year Round: Why the Rinnai B20 is a Glenelg Favourite

When an old, bulky storage hot water system failed at a Glenelg unit recently, the owners knew they wanted a more modern, efficient solution. Space is often at a premium in coastal apartments, making the transition to a compact, continuous-flow system the perfect move.

Our trusted and experienced in-house technicians supplied and installed the Rinnai B20—a powerhouse of efficiency in a slimline package. As local Adelaide experts for 45 years, we recommend this unit for smaller households and units where reliability and space-saving are top priorities.

The Rinnai B20: Smart, Compact, and Endless

The Rinnai Builders Series B20 isn’t just a replacement; it’s a significant lifestyle upgrade. Unlike old tanks that heat water 24/7, this system only heats water the moment you turn on the tap.

  • Endless Hot Water: You will never “run out” of hot water mid-shower again. As long as you have gas and water, the B20 will keep delivering.
  • 6-Star Efficiency: With a 6.0-star equivalent energy rating, the B20 is one of the most efficient 20L systems on the market, significantly reducing your gas bills compared to old storage units.
  • Space-Saving Design: Its slim profile allows it to be mounted discretely on an external wall, freeing up valuable floor space or cupboard room inside your home.
  • Puretemp™ Technology: This ensures your water temperature remains steady even if someone else turns on a tap elsewhere in the house—no more “cold shocks” in the shower.

Safety First: Temperature Presets and Ignition

One of the standout features of the Rinnai B20 is its flexibility for families.

  • Preset Peace of Mind: The unit can be factory preset to 50°C or 60°C. For households with young children or seniors, the 50°C setting is a vital safety feature that helps prevent accidental scalding without needing a separate tempering valve.
  • All-Weather Reliability: The B20 uses direct electronic ignition with automatic flame sensing. Unlike old systems with a pilot light that can blow out in a Glenelg sea breeze, this electronic system provides reliable combustion in all weather conditions.

The Sharpe “Turnkey” Service

Since 1970, we have been serving generations of the same household families across Adelaide. We don’t just “drop and swap” your system. Our comprehensive service includes:

  • Expert Fitting: Precise gas and water connections by licensed pros.
  • Full Testing: Ensuring the system is calibrated for your home’s specific flow rates.
  • Clean-Up & Disposal: We remove all rubbish and take your old, heavy tank away for recycling.
  • Certificate of Compliance: Every installation is legally certified, protecting your 15-year heat exchanger warranty.

FAQ


WHY CHOOSE SHARPE TRADE SERVICES

Why Adelaide Trusts Sharpe Trade Services


We’ve earned our reputation through decades of consistent, high‑quality service. When you choose Sharpe, you benefit from:

  • 45+ years of local experience
  • Trusted, licensed and qualified technicians
  • Rapid 3‑hour response*
  • Transparent pricing and clear communication
  • Fully stocked service vehicles
  • Compliance certificates for all required work
  • Finance options available* for approved customers
  • A genuine commitment to customer satisfaction
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TESTIMONIALS


Real feedback from real customers.

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Iris Iwanicki profile picture
Iris Iwanicki
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Jennifer Burt
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The plumbers were friendly and competently carried out the service. They arrrived within the time scheduled.
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Justin Gum
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Great service. Probably not the cheapest, but excellent service.
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Sunil Savur
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Quick response, diagnosing of problem, problem solving, and suggested options moving forward.
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Jane Arampatzis
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Team member ,Chris was super professional and explained to me about the issue in my oven. He has ordered the parts needed to be replaced and within 48 hrs he is installing the new parts. Thanks
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Mike Wilson profile picture
Mike Wilson
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Clear explanation and frank advice from a professional, yet personable, technician
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Jeff Hobart
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Technician arrived on time, inspected our Solar panels and inverter to diagnose an alarm. Explained the issues and took photos to identify the causes in clear manner.
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rob koehler
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Peter Cosh
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Excellent prompt service and very professional